Pile wire for doup heddle looms



Oct. ,1'3, 1936. W, H HALL, JR 2,057,615

PILE WIRE FOR DOUP HEDDLE LOOMS Original Filed Sept. 2, 1933 2Sheets-Sheet 1 oct. 13, 1936. W HALL, 1R 2,057,615

PILE WIREv FOR DOUP HEDDLE LOOMS l Original Filed Sept. 2, 1933 2Sheets-Sheet 2 Cil Patented Oct. 13, 1936 UNITED STATES ATENT OFFICEPILE WIRE FOR DOUP HEDDLE LOOMS Sey Original application September 2,1933, Serial No. 688,019. Divided tober 25, 1934, Serial 'l Claims.

The present application is a division of the copending parentapplication Serial No. 688,019, filed September 2, 1933.

This invention relates to the weaving of pile fabrics, such as carpet,on a loom normally adapted for the weaving of plain non-pile fabrics,such as canvas or asbestos fabric of the character normally used in themaking of brake linings and clutch facings, wherein the sheet or web offabric after weaving on the loom is cut and folded to provide a requirednumber of layers or plies in the finished frictionized material.

The loom is of an ordinary type Vof well known construction includingthe usual plurality of heddle frames for manipulating the warp threadsin forming open sheds for the passage of the shuttle in carrying a weitthread through the open warp shed in the production of a commonone-over-one or a twill weave; and normally is not equipped with anymechanism for forming a pile face on the fabric.

The present invention relates to equipment adapted to be incorporated ina loom of the type noted, whereby a plain pile faced fabric may beproduced thereon, all as will be fully disclosed hereinafter, referencebeing had to the accompanying drawings, of which:

Fig. 1 is a longitudinal sectional elevation of sufficient of a loom ofthe type noted to illustrate the operation of the elements of thepresent invention as applied thereto;

Fig. 2 isI a fragmentary view`similar to Fig. 1, drawn to an enlargedscale, illustrating certain parts of the mechanism of Fig. l;

Fig. 3 is a fragmentary perspective view of the support for the'rearends of the stationary pile wires;

Fig. 4 is a fragmentary perspective view of the support for the frontends of the stationary pile Wires; and

Fig. 5 illustrates a detail of the invention.

As shown in the drawings, the loom comprises the usual transverselyextending breast beam I, a series of transversely extending heddleframes 2, 3, 4, 5 and B, in the present instance, and a lay 1 providedwith the usual reed or comb having a series of dents 8 formed by andbetween a series'of laterally spaced blades 9, 9.

In the present instance the warp in the loom comprises a series ofstuffer warp threads s, a series of chain warps c, a second series ofchain warps c1 and a series of pile warps p, all of which extendlongitudinally of the loom through the heddle frames and dents of thereed` and this application Oc- No. 749,979

Also extending longitudinally of the loom, through the heddle frames andlay reed, is a series of pile wires Il), I0, the front ends of whichterminate adjacent the breast beam I and are each provided with a headII, clearly shown in Figs. l and 2.

Each head Il is provided with a forwardly extending lug or projectionI2, which is seated in a horizontal groove I3 formed in the rear face ofa bridge beam I4; and a shoulder I5 abutting the rear face of the bridgebeam I4, to prevent forward longitudinal movement of the pile wires I0,IU.

Each of the heads II is provided with a rearwardly extending lug orprojection I6 overhanging the forward end of the associated pile wireIIJ. The projection I6, in each instance, is provided with a dependinglip II (see Fig. 5), the underside of which, and the corresponding upperside of the adjacent portion of each pile wire I0 are grooved asindicated at I8 and I9 respectively, to receive a thin removable blade20. Each blade 20 is provided with a cutting edge 2|, which is disposedat an acute angle to the upper edge of the pile wire. Each blade 20 isshouldered, as indicated at 22, to abut the rear edge of the projectionI6, to prevent forward longitudinal movement of the blade relative tothe pile wire.

'I'he rear end of each of the pile wires I9 is provided with a slot oreye 23 (see Fig. 3), which is adapted to receive a readly removable bar24 on which the series of pile wires is threaded. The bar is supportedby a rear beam 25 which extends transversely of the loom and ispermanently fixed, at its opposite ends, to the side frames 26 of theloom, as indicated in Fig. 3. A staple or hook 21 is provided adjacenteach end of the bar 24 and rigidly secured in the rear beam 25, toreceive the bar 24 and secure the same in xed relation to the rear beam25, each end of the bar 24 being provided with an opening 28 adapted toreceive a cotter pin 29, outside the staple 2l, whereby longitudinalmovement of the bar 24 is prevented.

The pile wires I D, while being stationary, insofar as longitudinalmovement in the loom is concerned, are permitted a slight relativelateral movement in the slot I3 at their forward ends and on the bar 24at their rear ends, to prevent binding of the pile wires against theblades 9 of ,the reed, as the lay 'I reciprocates intermediate thebreast beam I and the first of the heddle Vframes 2.

The front ends of the pile wires I0 maybe readily removed from thesupporting slot |31 of the bridge I4 by the removal of a bar 3i), thelower surface of which forms the upper surface of the slot I3, which issecured tothe bridge beam I4 by means of bolts 3l, as clearly shown inFig. 2.

The bridge vbeam i4 is spaced above the upper face of the breast beam i,to provide a fabric passage or slot 32, by means of blocks 33 disposedat the opposite ends vof the bridgebeam I, between the said bridge beamand the said breast beam, the bridge beam M, the `bloclrsf33, and thebreast beamvl being secured together as a unit by means of screws orboltsn34.

As shown in Fig. l, the stuifer warps s are under the control of theheddle framefE while the chain warps c and c1 are controlled `by theheddle frames 4 and 5 respectively. The pile warps p,

are each under control of a doup heddle 35.

The doup heddles are operated in the manner described in the'above notedparent application,

to carry thev pile warpsp down first on one side of the pile wires l0,then on the opposite side..

The pile wires and the 'mounting therefor, which form the subject matterof the present application, are so constructed and supported that inevent of it being necessary for the weaver to tie' in broken warp endsthe pile wires l 0 may beseparated in the same manner as the warpthreads, i. e. pushed aside by the weavers hands in getting in at vthebroken thread in the shed underlying theipile wires, due to theflexibility of the wires and upon withdrawal of the weavers hands thewires will reassume their normal relative positions immediately or uponthe next movement of the lay wherein the blades 9 will comb the wiresinto place. This is made possible by the fore and aft mountings of thepile wires by which lateral relative movement of the wires is permitted.

I claim:

1. In a loom, comprising a breast beam, the combination therewith of aseries. of pile Wires extending substantially at right angles to thebreast beam in a substantially horizontal plane, a bridge beam spacedabovel and substantially paralleling the breast beam and provided with ahorizontally extending groove, ahead on and formed integral with eachpile wire and of a width not'exceeding the width of the wire, said headhavingf'air projection extending into said groove for holding each pilewire against verticalv movement and providing for lateralrelativemovement between the pile wires, a shoulder on each head engaging thebridge beam to prevent longitudinal movement of the pile wires, aprojection on the head and overhan'ging the pile wire, a removable'bladeinserted in a slot formed in the upperedge of the pile wire adjacent thehead and into a slot formed in the rear edge of the overhanging`projection 'of said head and having a cutting edge projecting at anangle from the upper edge of the pile wire to the overhanging projectionon the head, and a shoulder'on the blade engaging the base of the slotYin said rear edge of said projection on the yead to preventlongitudinal movement of the blade relative to the wire.`

2. In a loom, comprising a breast beam, the combination therewith of aseries of pile wires extending substantially at right angles to thebreast beam in a' substantially horizontal plane,

-a bridge beam spaced above and inwardly from the front edge of thebreast beam and substantially paralleling the'breast lbeam and providedwith a horizontally extending groove in its rear face for the receptionof the ends of the pile wires and loosely holding said ends of saidwires against forward longitudinal and vertical move-v ving groove tofacilitate removal of the pile wires Vfrom the bridge beam.

3. In a loom, comprising a breast beam, the

"combination therewith of a series of pile wires extending substantiallyat right angles to the -breast beam in a substantially horizontal plane,

a bridge beam spaced above and substantially paralleling the breast beamand provided with a horizontally extending groove for the reception .ofthe ends of the pile wires for holding said ends of said wires againstlongitudinal and vertical` movement and providing for lateral relativemovement therebetween in said groove, a rear beam supporting the rearends of the pile wires, and a readily removable bar extending throughformed eyes in the said rear ends ofV the pile wires to secure the pilewires tothe rear beam.

4. In a loom comprising a breast beam, a Warpcontrolling harness, a backbeam substantially parallel to the breast'beam and disposed behind saidharness and a lay having a reed comb oscillating intermediate the breastbeam and the harness, said loom having a woven fabric passing over thebreast beam and a divergent open warp shed extending rearwardly from thefabric through said reed comb and the harness, a bridge beam spacedabove the breast beam and fabric, pile wires extending rearwardly vfromthe bridge beam through the reed comb and the harness with one portionthereof substantially Yparallel to the fabric and supported by thebridge beam, a second portion thereof inclined to the first said portionand disposed above and substantially parallel to the upper portion ofsaid open warp shed, andf a third portion Asubstantially parallel to therst said portion and lying to the rear of said .lay and extendingthrough the harness and anchored at their back ends to said back beam.

open warp shed extending rearwardly from the fabric through said reedcomb and the harness, a bridge beam spaced above the breast beam andfabric, pile Wires extending rearwardly from the bridge beam through thereed comb and the harness with one portion thereof substantiallyparallel to the fabric, a second portion thereof inclined to the firstsaid portion and disposed above and substantially parallel to the upperportion of said open warp shed, and a third portion substantiallyparallel to the rst said portion and lying to the rear of said lay andextending through the harness and anchored at their back ends to 'saidback beam, said bridge beam having a rear groove in which the front endsof said pile wires are slidably mounted for relative lateral movement.

'6. In a loom comprising a breast beam, a warpcontrolling harness, aback beam substantially parallel to the breast beam and' disposed behindsaid harness and a lay having a reed comb oscillating intermediate thebreast beam and the harness, said loom having a woven fabric passingover the breast beam and a divergent open warp shed extending rearwardlyfrom the fabric through said reed comband the harness, a bridge beamspaced above the breast beam and fabric, pile wires extending rearwardlyfrom the bridge beam through the reed comb and the harness with oneportion thereof substantially parallel to the fabric, a second portionthereof inclined to the first said portion and disposed above andsubstantially parallel to the upper portion of said open warp shed, athird portion substantially parallel to the first said portion and.-lying to the rear of said lay and extending through the harness andanchored at its back end to said back beam, said bridge beam having arear groove in which the front ends of said pile wires are slidablymounted for relative lateral movement, and a shoulder adjacent the frontend of each wire bearing against the rear face of the bridge beam andpreventing forward longitudinal movement of said wires.

7. In a loom comprising a breast beam, a back beam substantiallyparallel thereto and a lay having a reed comb oscillating intermediatesaid beams, said loom having a woven fabric passing over the breast beamand a divergent open warp shed extending rearwardly from the fabricthrough said reed comb, a bridge beam spaced above the breast beam andfabric, pile Wires extending rearwardly from the bridge beam through thereed comb witli one portion thereof substantially parallel to thefabric, a second portion thereof inclined to the first said portion anddisposed above and substantially parallel to the upper portion of saidopen.l warp shed, and a third portion substantially parallel to thefirst said portion and lying to the rear of said lay and anchored at itsback end to said back beam, said anchorage comprising a bar parallel to,spaced from, and secured at its opposite ends to said back beam andhaving its central portion passing through eyes respectively formed inthe back ends of said pile Wires allowing relative lateral movement ofthe wires on said bar.

WM. H. HALL, JR.

